<?php
//$Id: util.php 460 2012-07-09 08:27:03Z tomqin@gmail.com $

/**
 * Util 工具类
 *
 * @copyright       Copyright (C) 2010-2012 ARESCMS Inc.
 * @author          TomQin <tomqin@gmail.com>
 * @license         http://www.arescms.cn/license/
 * @package Core
 */

class Util{
    static function isMobile($no) {
        return preg_match('/^1[3458][\d]{9}$/', $no)
            || preg_match('/^0[\d]{10,11}$/', $no);
    }

    static private function getHttpContent($fsock=null) {
        $out = null;
        while($buff = @fgets($fsock, 2048)){
            $out .= $buff;
        }
        fclose($fsock);
        $pos = strpos($out, "\r\n\r\n");
        $head = substr($out, 0, $pos);    //http head
        $status = substr($head, 0, strpos($head, "\r\n"));    //http status line
        $body = substr($out, $pos + 4, strlen($out) - ($pos + 4));//page body
        if(preg_match("/^HTTP\/\d\.\d\s([\d]+)\s.*$/", $status, $matches)){
            if(intval($matches[1]) / 100 == 2){
                return $body;
            }else{
                return false;
            }
        }else{
            return false;
        }
    }

    static public function httpRequest($url, $data=array(), $abort=false) {
        if (!function_exists('curl_init')) {
            return empty($data) ? self::doGet($url) : self::doPost($url, $data);
        }
        $timeout = $abort ? 1 : 2;
        $ch = curl_init();
        if (is_array($data) && $data) {
            $formdata = http_build_query($data);
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $formdata);
        }
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
        curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
        $result = curl_exec($ch);
        return (false===$result && false==$abort)? ( empty($data) ? self:: doGet($url) : self::doPost($url, $data) ) : $result;
    }

    static public function doGet($url){
        $url2 = parse_url($url);
        $url2["path"] = ($url2["path"] == "" ? "/" : $url2["path"]);
        $url2["port"] = (!isset($url2["port"]) ? 80 : $url2["port"]);
        $host_ip = @gethostbyname($url2["host"]);
        $fsock_timeout = 2;  //2 second
        if(($fsock = fsockopen($host_ip, $url2['port'], $errno, $errstr, $fsock_timeout)) < 0){
            return false;
        }
        $request =  $url2["path"] .($url2["query"] ? "?".$url2["query"] : "");
        $in  = "GET " . $request . " HTTP/1.0\r\n";
        $in .= "Accept: */*\r\n";
        $in .= "User-Agent: Payb-Agent\r\n";
        $in .= "Host: " . $url2["host"] . "\r\n";
        $in .= "Connection: Close\r\n\r\n";
        if(!@fwrite($fsock, $in, strlen($in))){
            fclose($fsock);
            return false;
        }
        return self::getHttpContent($fsock);
    }

    static public function doPost($url,$post_data=array()){
        $url2 = parse_url($url);
        $url2["path"] = ($url2["path"] == "" ? "/" : $url2["path"]);
        $url2["port"] = ($url2["port"] == "" ? 80 : $url2["port"]);
        $host_ip = @gethostbyname($url2["host"]);
        $fsock_timeout = 2; //2 second
        if(($fsock = fsockopen($host_ip, $url2['port'], $errno, $errstr, $fsock_timeout)) < 0){
            return false;
        }
        $request =  $url2["path"].($url2["query"] ? "?" . $url2["query"] : "");
        $post_data2 = http_build_query($post_data);
        $in  = "POST " . $request . " HTTP/1.0\r\n";
        $in .= "Accept: */*\r\n";
        $in .= "Host: " . $url2["host"] . "\r\n";
        $in .= "User-Agent: Lowell-Agent\r\n";
        $in .= "Content-type: application/x-www-form-urlencoded\r\n";
        $in .= "Content-Length: " . strlen($post_data2) . "\r\n";
        $in .= "Connection: Close\r\n\r\n";
        $in .= $post_data2 . "\r\n\r\n";
        unset($post_data2);
        if(!@fwrite($fsock, $in, strlen($in))){
            fclose($fsock);
            return false;
        }
        return self::getHttpContent($fsock);
    }
}
?>